diff options
Diffstat (limited to 'io_uring/zcrx.c')
| -rw-r--r-- | io_uring/zcrx.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c index 00d0064b22a54..4a7011c799f01 100644 --- a/io_uring/zcrx.c +++ b/io_uring/zcrx.c @@ -76,6 +76,8 @@ static int io_import_dmabuf(struct io_zcrx_ifq *ifq, int dmabuf_fd = area_reg->dmabuf_fd; int i, ret; + if (off) + return -EINVAL; if (WARN_ON_ONCE(!ifq->dev)) return -EFAULT; if (!IS_ENABLED(CONFIG_DMA_SHARED_BUFFER)) @@ -106,7 +108,7 @@ static int io_import_dmabuf(struct io_zcrx_ifq *ifq, for_each_sgtable_dma_sg(mem->sgt, sg, i) total_size += sg_dma_len(sg); - if (total_size < off + len) { + if (total_size != len) { ret = -EINVAL; goto err; } |